Sheet-metal roofing



(No Model.)

0. B. & H. H. GRA-HL.

SHEBT METAL ROOFING.

Patented Nov. 7; 1893.

A UNITED STATES PATENT OFFICE.

CARL B. GRAHL AND HARRY H. GRAHL, OF COUNCIL BLUFFS, IOWA.

SHEET-METAL ROOFING.

SPECIIIATIN forming part of Letters Patent NO. 508,105, dated November7, 1893. Application filed May 13, 1893. Serial No. 474,124. (No model.)

Ta a ZZ whom it may concern:

Be it known that We, CARL B. GRAHL and HARRY H. GRAHL, citizens of theUnited States, residing at Council Blu is, in the county ofPottawattamic, State of Iowa, have invented certain new and nsefulImprovements in Sheet-Metal Roofing, of which the following is aspecification, reference being had therein to the aceompanying drawings.

This invention relates to certain new and useful improvements in sheetmetal roofing, and it has for its objects among others to provide asimple and cheap form of roofing by which the sheets can be quickly andeasily secured in place and the joint formed in such a manner as'to besecure and tight. The cap piece is so formed as to embrace the tongne ofone sheet and then after the next sheet has been placed in position aportion of the same cap piece is bent thereover and the whole elampedtogether.

Other objects and ad vantages of the invention will hereinafter appearand the novel features thereof will be specifically defined by theappended claim.

The invention is clearly illustraced in the accompanying drawings,which, With the letters of reference marked thereon, form a part of thisspecification, and in which Figure 1 is a perspective view showing twosheets in position with the cap piece partly closed down. Fig. 2 is aperspective view showing portions of two sheets with their tongues orflanges and a portion of the cap piece, the partsbein g separated. Fig.3 is a vertical cross section through the joint.

Like letters of referenee indicate like parts throughont the severalviews.

Referring now to the details of the drawings by letter, A designates asheet metal shingle or plate having one edge turned up at a right angleto form the-fiange or tongue (L, and B is a similar plate having itsedge adjacent to the fiange of the plate A also turned np at a rightangle to form the tongue' or fiange b.

0 is the cap piece; it is fermed with a hori: zontal fiange c which isadapted to receive the nails or other means by which it is secured tothe roof, and with a vertical portion 0 which is bent upon itself at itsupper edge as seen at 0 and thence extended downward at (1, In use theplate A is first placed in position and then the cap piece is placedover it as will be understood from Fig. 2 in which the cap piece is justabout being placed in position, the space c receiving the fiange a ofsaid plate and the fiange c being adapted to lie fiat upon the roof towhich it is secured in any of the Well known ways; the plate B is thenplaced in position With its fiange b against the vertical portion 0 01:the cap piece as shown in Fig. 1, the plate B being crimped as seen at 6at the edge of the fiange c, and then the portion D of the cap piece isturned over so as to embraee the flanges a and I) of the plates A and Band the Vertical portions of the cap piece, and the whole is thenpressed together in any snitable manner t0 bind the parts firmlytogether.

What is claimed as new is- The combination with two sheets, each With afiange and one of them crimped, as at 3, of a cap-piece having' ahorizontal portion fitted within the crim p, a vertical portion arrangedbetween the flanges of said sheets, a bend embracing the upper edge ofone of said fianges, a donbled vertical portion upon the outside of theembraced fiange and a downwardlyextending portion embracing both fiangesand the central vertical portion of the cap piece and covering the upperedges thereof and of the central fold, the said cap piece being providedwith a bead at its free edge and slotted at the upper folded edge,substantially as specified.

In testimony whereof we afix our signatures in presence of twowitnesses.

CARL B. GRAHL. HARRY H. GRAHL. Witnesses:

C. S. LEFFERTS, N. D. LAURENCE.

